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Additional Information
Direction Selection Failure
The Direction Selection Failure will occur if both direction inputs are signaled when the Drive Enable is
initially signaled at the beginning of a run.
Drive Enable Dropped
Whenever the drive enable is dropped, output current will instantly be shut off. If the drive enable is
dropped any time during the course of a normal run a Drive Enable Dropped event is logged.
A normal run is considered any run prole that is not inspection. A Drive Enable Dropped event will
not occur on an inspection run.
• For US04 Control Type = Binary Speed (1), Digital Speed (0) Selection, or Serial Binary Speed
DIN66019 Serv. 50 (6), the speed signaled for inspection speed must match the corresponding
inspection speed according to the LI03 Speed Input Decoding.
• For US04 Control Type = Serial or Analog, a run is considered an inspection run when the digi-
tal input (LI04-11) programmed as Inspection Speed (32) is on for the length of the entire run.
If a Drive Enable Dropped event occurs, a potential ensuing Unintended Movement event will not be
logged.
ESD/ETS Input Failure
When a digital (LI04-11) or serial (Fb21-27) input is programmed for Emergency Slowdown (ESD)
or Emergency Terminal Slowdown (ETS), the input must be active at the start of a run, otherwise an
ESD or ETS Input Failure event will occur.
Main Contact Failure
When a digital (LI04-11) or serial (Fb21-27) input is programmed for Main Contactor Check (19), the
drive checks for the signal that the contactor has closed at the beginning of a run. If not, the Main
Contact Failure event will occur.
NTS Input Failure
When a digital (LI04-11) or serial (Fb21-27) input is programmed for Normal Terminal Slowdown
(NTS), the input must be active at the start of a run, otherwise an NTS Input Failure event will occur.
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